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/* -*- c++ -*- */
/*
* Copyright 2002 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_GR_RANDOM_H
#define INCLUDED_GR_RANDOM_H
#include <gr_complex.h>
/*!
* \brief pseudo random number generator
* \ingroup math_blk
*/
class gr_random {
protected:
static const int NTAB = 32;
long d_seed;
long d_iy;
long d_iv[NTAB];
int d_iset;
float d_gset;
public:
gr_random (long seed=3021);
void reseed (long seed);
/*!
* \brief uniform random deviate in the range [0.0, 1.0)
*/
float ran1 ();
/*!
* \brief normally distributed deviate with zero mean and variance 1
*/
float gasdev ();
float laplacian ();
float impulse (float factor);
float rayleigh ();
gr_complex rayleigh_complex ();
};
#endif /* INCLUDED_GR_RANDOM_H */
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